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United States Patent | 5,135,484 |
Wright | August 4, 1992 |
A method of removing plaque from vessels by at least partially isolating a portion of a vessel which is partially occluded by plaque from the remainder of the vessel, forcing a slurry to flow in contact with the plaque in the vessel to abrade the plaque, and withdrawing the slurry from the vessel, and apparatus for carrying out the method, are disclosed.
Inventors: | Wright; John T. M. (Conifer, CO) |
Assignee: | Pioneering Technologies, Inc. (Wheat Ridge, CO) |
Appl. No.: | 520738 |
Filed: | May 9, 1990 |
Current U.S. Class: | 604/28; 604/22; 604/101.03; 604/508; 606/159 |
Intern'l Class: | A61B 017/00 |
Field of Search: | 606/159,190,127,128 128/66 604/101,96,22,43,28,53 |
3401690 | Sep., 1968 | Martin | 604/22. |
3565062 | Feb., 1971 | Kuris | 606/159. |
4423725 | Jan., 1984 | Baran et al. | 604/101. |
4445509 | May., 1984 | Auth | 606/159. |
4573966 | Mar., 1986 | Weikl et al. | 604/101. |
4655746 | Apr., 1987 | Daniels et al. | 604/101. |
4690672 | Sep., 1987 | Veltrup | 604/43. |
4696668 | Sep., 1987 | Wilcox | 604/101. |
4729763 | Mar., 1988 | Henrie | 606/159. |
4790813 | Dec., 1988 | Kensey | 606/159. |
4795438 | Jan., 1989 | Kensey et al. | 604/22. |
4898574 | Feb., 1990 | Uchiyama et al. | 606/127. |
4902276 | Feb., 1990 | Zakko | 604/43. |
4950238 | Aug., 1990 | Sullivan | 604/22. |
Foreign Patent Documents | |||
229620 | Jul., 1987 | EP | 606/159. |
232678 | Aug., 1987 | EP | 606/159. |
2230283 | Jan., 1974 | DE | 606/127. |
3019115 | Dec., 1981 | DE | 606/159. |
3421390 | Dec., 1985 | DE | 606/159. |
3438131 | Apr., 1986 | DE | 606/127. |
8303356 | Oct., 1983 | WO | 604/101. |